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  <title>Document</title>
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<body>
  <script>
    var arr = function(nums) {
    nums.sort((a, b) => a - b);
    let ans = 0;
    for (let i = 0; i < nums.length; i += 2) {
        ans += nums[i];
        console.log(ans);
    }
    return ans;
};
console.log(arr(  [6,2,6,5,1,2]));
  </script>
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